RISK (born Kelly Graval), also known as RISKY, is a Los Angeles-based graffiti artist and fashion entrepreneur. In the 1980s, RISK gained notoriety for his unique style and pushed the limits of graffiti: He was one of the first writers in Southern California to paint freight trains, and he pioneered writing on "heavens", or freeway overpasses. At the peak of his career he took graffiti from the streets and into the gallery with the launch of the Third Rail series of art shows, and later parlayed the name into a line of graffiti-inspired clothing.
With a background in fine art, Graval has a style defined by cleanly executed lettering paired with graphic imagery and architectural lines. He has participated in a number of street art crews, most famously West Coast Artists (WCA) and the Seventh Letter. In the course of his nearly 30-year career, Graval has become one of the most influential figures for subsequent generations of graffiti artists, particularly in Los Angeles. He is also considered one of the first artists to have painted on freight trains, as well as a pioneer of “painting in the heavens”—a graffiti term referring to highly elevated surfaces like billboards, rooftops, and overpasses.